1. 100% human hair 
2. specification:   8 inches  x 1 pc  with 3 clips
                               6 inches x 2 pcs with 3 clips
                               4 inches x 2 pcs with 2 clips
                               2 inches x 2 pcs with 1 clip
3. there are 7 pcs and 15 clips
4. the size of clips is 3.2cm